The Modular Chest Rig is built out if 1000D Nylon. 19X4 Rows of PALS webbing for you to attach our Stacker pouches or any other brand Molle Pouches. Straight tacked pals stitching ensures a longer life than traditional bartacking. Quick attaching and detaching shoulder pads and interchangeable with other V-OPS backs. Manufactured in Oceanside, Ca. Comes with a lifetime warranty.